similar to: Error with user defined split function in rpart (PR#7895)

Hi, I am trying to use the rpart library with my own set of functions on a survival object. I get an immeadiate segmentation fault when i try calling rpart with my list of functions. I get the same problem with the logrank example from Therneau,s S-rpart library though their anova example works. Should I report this as a bug, as even if my functions are structured improperly, that should lead to

I have been trying to write my own user defined function in Rpart.I imitated the anova splitting rule which is given as an example.In the work I am doing ,I am calculating the concentration index(ci) ,which is in between -1 and +1.So my deviance is given by abs(ci)*(1-abs(ci)).Now when I run rpart incorporating this user defined function i get the following error message: Error in

Dear all, I'm getting an error in one of the stock examples in the 'mvpart' package. I tried: require(mvpart) data(spider) fit3 <- rpart(gdist(spider[,1:12],meth="bray",full=TRUE,sq=TRUE)~water+twigs+reft+herbs+moss+sand,spider,method="dist") #directly from ?rpart summary(fit3) ...which returned the following: Error in apply(formatg(yval, digits - 3), 1,

R-help - I have this set of aggregated tables (sample data below via dput()). And I would like to have delayValue as the column variables with the "temp" (temp1, temp2, temp3) values as the row variables. However I would like to have the temp variables *aggregated into single rows* so that I have the frequency ("Freq" | counts) of each time each "delayValue" occurs

On Sat, Jun 04, 2005 at 08:00:45AM -0700, Ralph Giles wrote: > The replay gain code has dos line endings in CVS, which causes problems > for the Sun compiler, among others. Attached is a patch for the lazy, > but it's probably easier to fix locally and commit. Now with actual patch... -r -------------- next part -------------- Index:

Hi Prof. Williams, thanks for your suggestion. The updated code is below. It turns out it was a matter of displaying the second column in yval to get the number of N and subtracting it from the n column in the frame to get the number of Y remaining in a binary example. once this is added now the function returns the rules along with Y and N count affected by the resulting rule. I am ccing

i have a time Series of IBM closing px from 1/1/2000 to today I want to graph the time serie by dividing the graph by year and month all the monthly graphs with the same year will go to one page. so from 1/1/2000 to 11/19/2010. i will have 11 pages, and each page will have 12 graphs (jan to dec) except for 2010. I am able to do it in R, but when i use sweave, I can only print the last page.

Hello there, after I solved many problems in the last days with R I wanted to complete my plot. I used ylab=expression(paste("log(",mu,"/",cm^2,"/VS)")) to have greek symbols and to change cm^2 to cm?. Also cm^-3 I have in another plot, but it cuts my ^2 to _ in the y-axis. here is the code and I attach the plot: jpeg(file="Tabh2.jpg",quality=100)

Hi all- I am stumped. The code in A. returns errors at lines 14 and 15 and fails to load series1 and series2. However, in B., if temp1 and temp2 are called again (which returns a "Table exists" error; see lines 14-17 in B.) series1 and series2 load correctly. Any ideas? Also-I am open to any suggestions to improve the code as I am a horrific programmer. Thanks A. 1 >

Hi all, I am using R1.5.0 under Unix, I have a couple of questions here. 1. My program is running out of memory. I am writing a program to grow a list of trees using rpart() on a subset of a large dataset(5807x693) with a different response for every tree. I saw that after each tree was constucted, 116 MB of data was being added to the Vcells. I have no idea what this data is. My dataset is

Hi all, I have a C code in Linux, it has 7 pointers and compile e run OK, but when I run in R happens problems with calloc function, it returns NULL. ############################################### > int *temp1,*temp2,*temp3,*temp4; temp1 = (int *)calloc(col,sizeof(int)); if(temp1 == NULL){ printf("\n\n No Memory1!"); exit(1); } temp2 = (int *)calloc(col,sizeof(int));

Dear All, I am very new to R - trying to teach myself it for some MSc coursework. I am plotting temperature data for two different sites over the same time period which I have downloaded from a university weather station data archive. I am using the following code to create the plot plot ( x = TEMP3[,"TIME"], y = TEMP3[,"TEMP"], type = "p", col =

Hello ! I'd like to know to which of the FANN package network corresponds the R nnet network ? In more details, what is the R nnet activation function, what is the training algorithm (rprop, quickprop, ...) ? Also, it seems that the R nnet "decay" parameter in nnet corresponds to the "learning_rate" parameter in FANN. Correct ? Many thanks in advance ! Luc Moulinier

Dear Will, This is exactly what I find. My point is thus that the sum function in R is not a naive sum nor a Kahansum (in all cases), but what algorithm is it using then? Cheers, Rampal On Tue, Feb 19, 2019, 19:08 William Dunlap <wdunlap at tibco.com wrote: > The algorithm does make a differece. You can use Kahan's summation > algorithm

This SO question may be of interest: https://stackoverflow.com/questions/38589705/difference-between-rs-sum-and-armadillos-accu/ which points out that sum() isn't doing anything fancy *except* using extended-precision registers when available. (Using Kahan's algorithm does come at a computational cost ...) On 2019-02-19 2:08 p.m., William Dunlap via R-devel wrote: > The algorithm

Dear list, I have some trouble generating a frequency table over a number of vectors. Creating these tables over simple numbers is no problem with table() > table(c(1,1,1,3,4,5)) 1 3 4 5 3 1 1 1 , but how can i for example turn: 0 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 0 0 into 0 0 1 1 1 0 0 2 0 1 0 3 My second problem is, sorting rows and columns of a matrix by the rowSums/colSums. I did it

Hi all :) Using lm_sensors, I can see few temperature indicator. M/B Temp: +39?C (low = +15?C, high = +40?C) sensor = thermistor CPU Temp: +33?C (low = +15?C, high = +45?C) sensor = thermistor Temp3: +53?C (low = +15?C, high = +45?C) sensor = diode What is that Temp3? It's the hottest. Which one is the best to use if I want to use lm_sensor as a general

Someone said it used a possibly platform-dependent higher-than-double-precision type. By the way, in my example involving rep(1/3, n) I neglected to include the most precise way to calculate the sum: n%/%3 + (n%%3)/3. Bill Dunlap TIBCO Software wdunlap tibco.com On Wed, Feb 20, 2019 at 2:45 PM Rampal Etienne <rampaletienne at gmail.com> wrote: > Dear Will, > > This is exactly

Dear all, I am working on a data set in which I have sequentially measured egg temperatures ("eggtemp") in birds incubating in different ambient temperatures ("treat", sample data set below), "id" is not replicated within treatment. id treat eggtemp 1 79 3 30.90166 2 42 3 34.94044 3 10 3 32.69945 4 206 3 36.64127 5 23 3 31.80055 6

Full_Name: Jim Breaux Version: 1.9.0 OS: WinXP Submission from: (NULL) (209.78.110.135) dir.create() is reporting a warning that a directory already exists when in fact the directory does NOT already exist. However, the erroneous behavior does not manifest itself until dir.create() has been called at least once to create a directory that DOES already exist. For example: # Create a directory